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                                                                     EXHIBIT (5)





                               September 22, 1997


CMS Energy Corporation
Fairlane Plaza South
330 Town Center Drive
Suite 1100
Dearborn, MI  48126

Gentlemen:

                 I am the Assistant General Counsel of CMS Energy Corporation,
a Michigan corporation (the "Company"), and have acted as such in connection
with the Registration Statement on Form S-3 (the "Registration Statement")
being filed by the Company with the Securities and Exchange Commission (the
"Commission") under the Securities Act of 1933, as amended (the "Securities
Act"), relating to the registration of $30,000,000 aggregate principal amount
of debt securities (the "Debt Securities").  Capitalized terms not otherwise
defined herein have the respective meanings specified in the Registration
Statement.

                 In rendering this opinion, I have examined and relied upon a
copy of the Registration Statement.  I have also examined, or have arranged for
the examination by an attorney or attorneys under my general supervision,
originals, or copies of originals certified to my satisfaction, of such
agreements, documents, certificates and other statements of governmental
officials and other instruments, and have examined such questions of law and
have satisfied myself as to such matters of fact, as I have considered relevant
and necessary as a basis for this opinion.  I have assumed the authenticity of
all documents submitted to me as originals, the genuineness of all signatures,
the legal capacity of all natural persons and the conformity with the original
documents of any copies thereof submitted to me for examination.

                 Based on the foregoing, it is my opinion that:

                 1.       The Company is duly incorporated and validly existing
                          under the laws of the State of Michigan.

                 2.       The Company has corporate power and authority to
                          execute and deliver the Subordinated Debt Indenture
                          (the "Subordinated Debt Indenture") between the
                          Company and The Bank of New York and to authorize and
                          sell the Subordinated Debt Securities pursuant
                          thereto, and to sell the Senior Debt Securities
                          pursuant to the Senior Debt Indenture dated as of
                          September 15, 1992, as supplemented (the "Senior Debt
                          Indenture") between the Company
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                          and NBD Bank, as Trustee (the Subordinated Debt
                          Indenture and Senior Debt Indenture, collectively, 
                          the "Indentures").

                 3.       The Debt Securities will be legally issued and
                          binding obligations of the Company (except to the
                          extent enforceability may be limited by applicable
                          bankruptcy, insolvency, reorganization, moratorium,
                          fraudulent transfer or other similar laws affecting
                          the enforcement of creditors' rights generally and by
                          the effect of general principles of equity,
                          regardless of whether enforceability is considered in
                          a proceeding in equity or at law) when: (i) the
                          Registration Statement, as finally amended (including
                          any necessary post-effective amendments), shall have
                          become effective under the Securities Act and the
                          Indentures (including any necessary supplemental
                          indentures) shall have been qualified under the Trust
                          Indenture Act of 1939, as amended, and duly executed
                          and delivered by the Company and the Trustees; (ii)
                          an appropriate Pricing Supplement with respect to the
                          particular Debt Securities then being sold by the
                          Company shall have been filed with the Commission
                          pursuant to Rule 424 under the Securities Act; (iii)
                          the Company's Board of Directors or a duly authorized
                          committee thereof shall have duly adopted final
                          resolutions authorizing the issuance and sale of the
                          particular Debt Securities then being sold by the
                          Company as contemplated by the Registration Statement
                          and the particular Indenture; and (iv) the
                          supplemental indenture under which the particular
                          Debt Securities are to be issued has been duly
                          authorized, executed and delivered, and the
                          particular Debt Securities then being sold by the
                          Company shall have been duly executed and
                          authenticated as provided in the particular Indenture
                          and such resolutions, and shall have been duly
                          delivered to the purchasers thereof against payment
                          of the agreed consideration therefor.

                 4.       The CMS Energy Common Stock ($.01 par value) will be
                          legally issued, fully paid and non-assessable when:
                          (i) the Registration Statement, as finally amended,
                          shall have become effective under the Securities Act;
                          (ii) CMS Energy's Board of Directors or a duly
                          authorized committee thereof shall have duly adopted
                          final resolutions authorizing Subordinated Debt
                          Securities to be converted into CMS Energy Common
                          Stock, as contemplated by the Registration Statement
                          and prospectus supplement relating thereto; and (iii)
                          upon conversion, certificates representing the CMS
                          Energy Common Stock, shall have been duly executed,
                          countersigned and registered and duly delivered to
                          the purchasers thereof against payment of the agreed
                          consideration therefor.
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                 For purposes of this opinion, I have assumed that there will
be no changes in the laws currently applicable to the Company and that such
laws will be the only laws applicable to the Company.

                 I do not find it necessary for the purposes of this opinion to
cover, and accordingly I express no opinion as to, the application of the
securities or blue sky laws of the various states to the sale of the Debt
Securities.

                 I am a member of the bar of the State of Michigan and I
express no opinion as to the laws of any jurisdiction other than the State of
Michigan and the federal law of the United States of America.

                 I hereby consent to the filing of this opinion as an exhibit
to the Company's Registration Statement on Form S-3 relating to the Debt
Securities and to all references to me included in or made a part of the
Registration Statement.

                                               Very truly yours,


                                               /s/ Michael D. Van Hemert        
                                               ------------------------------ 
                                               Michael D. Van Hemert
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                                                                    EXHIBIT (12)

                             CMS ENERGY CORPORATION
                       Ratio of Earnings to Fixed Charges
                             (Millions of Dollars)



                                             Six Months
                                               Ended                      Years Ended December 31
                                          June 30, 1997       1996       1995      1994       1993      1992
                                          ------------------------------------------------------------------
                                                                                                         (b)
                                                                                  
Earnings as defined (a)
- -----------------------
Consolidated net income (loss)               $ 138           $ 240      $ 204      $ 179      $ 155   $(297)
Income taxes                                    79             139        118         92         75    (146)
Exclude equity basis subsidiaries              (36)            (85)       (57)       (18)        (6)     10
Fixed charges as defined, adjusted to
  exclude capitalized interest of $7, $8,
  $8, $6, $5, and $3 million for the six
  months ended June 30, 1997 and for the
  years ended December 31, 1996, 1995,
  1994, 1993 and 1992, respectively            146             275        268        226        241     225
                                             --------------------------------------------------------------

Earnings as defined                          $ 327           $ 569      $ 533      $ 479      $ 465   $(208)
                                             ============================================================== 


Fixed charges as defined (a)
- ----------------------------
Interest on long-term debt                   $ 126           $ 230      $ 224      $ 193      $ 204   $ 169
Estimated interest portion of lease rental       5              10          9          9         11      16
Other interest charges                          22              43         42         30         32      43
                                             --------------------------------------------------------------

Fixed charges as defined                     $ 153           $ 283      $ 275      $ 232      $ 247   $ 228
                                             ==============================================================


Ratio of earnings to fixed charges            2.13            2.01       1.94       2.07       1.88       -
                                              =============================================================


NOTES:
(a) Earnings and fixed charges as defined in instructions for Item 503 of
Regulation S-K.

(b) For the year ended December 31, 1992, fixed charges exceeded earnings by
$441 million.  Earnings as defined include a $520 million pretax loss on the
settlement of MCV Power Purchases, $(15) million for potential customer refunds
and other reserves related to 1992 but recorded in 1991, and $6 million
relating to CMS Generation Company's reduction in its investment in The Oxford
Energy Company.  The ratio of earnings to fixed charges would have been 1.33
excluding these amounts.